let a_fn=async(ctx,next)=>[
    ctx.body='主页'
]
let b_fn=async(ctx,next)=>[
    ctx.body='/users/b'
]
let c_fn=async(ctx,next)=>[
    ctx.body='/users/c'
]


module.exports={
    '/':['get',a_fn],
    '/users/b':['get',b_fn],
    '/users/c':['get',c_fn]
}